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Re: [Qemu-devel] [RFC 0/5] scripts/dump-guest-memory.py: Add multi-arch


From: Markus Armbruster
Subject: Re: [Qemu-devel] [RFC 0/5] scripts/dump-guest-memory.py: Add multi-arch support
Date: Wed, 20 Jan 2016 14:50:11 +0100
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux)

Paolo Bonzini <address@hidden> writes:

> On 20/01/2016 11:03, Janosch Frank wrote:
>> 
>> In python 3:
>> 1/2 == 0.5
>> 1//2 == 0
>> but a // b == floor(a/b), i.e. a cast is made.
>> 
>> Anyway, I got rid of the import with:
>> -(-len_desc // 4)
>
> I would change that to either:
>
>     def ceil_div(a, b)
>         return -(-a // b)
>
>     ...
>
>     ceil_div(len_desc, 4)
>
> or
>
>     (len_desc + 3) / 4

The latter is *far* easier on my eyes.  But you'd still have to truncate
for Python 3.



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